We just made major upgrades to the chart JS from Google that may resolve your problem. You just need to copy 1 JS file and 1 Java file into 4.0.0 and build. We had another user do that in 3.0.0 and he confirmed it fixed all his chart issues. You can read about it here:

That is the new charts javascript from Google. And from your screenshot of your error I am still seeing it say PFE 4.0.0. You didn't build a 4.0.1 or something to differentiate to make sure it wasn't loading your old PF 4.0.0 JAR?